Base64 to Image Converter

Accepted input

The converter accepts these image types: PNG, JPEG, GIF, WebP, AVIF, and SVG.

Raw Base64:  iVBORw0KGgoAAAANSUhEUgAAA...
Data URL:    data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAA...
URL-safe:    iVBORw0KGgoAAAANSUhEUgAAA (using - and _ instead of + and /)

Data URLs must identify an image/ type and include ;base64. Whitespace inside the encoded payload is ignored. The encoded input is limited to 2,000,000 characters so processing remains dependable in a browser tab.

Type checks and previews

The converter identifies the decoded byte signature before it creates a download. If a data URL says image/png but its bytes are a JPEG, it stops with a type-mismatch message rather than relabelling the file.

PNG, JPEG, GIF, WebP, and AVIF are previewed when the current browser can render them. SVG is detected and can be downloaded, but the tool intentionally does not preview it. SVG can contain scripts, links, and other active content, so treat an SVG from an untrusted source as you would any other untrusted attachment.

What this tool does not decode

The converter rejects non-image bytes, percent-encoded data URLs, and data URLs that are not Base64. It does not repair a truncated string, convert one image format to another, inspect an image for malware, or confirm that a downloaded file is trustworthy.

Privacy

Decoding, previewing, and download creation happen in the current browser. The encoded image is not uploaded or sent through Livewire. In the optional two-step flow, the text stays only in this tab’s session storage long enough to reach the download step.